Problem 5 - Entrance Test

The union of { 1, 2, 3 } and { 2, 3, 4 } is:

A. { 1, 2, 3, 4 }B. { 2, 3 }C. { 1, 2, 3 }D. { 4 }

Correct: A

Union combines all unique elements from both sets, including 1, 2, 3, 4.